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USB PORT SPECIFICATIONS
Form Factor
USB-2.0 Type A
ESD Protection
15kV air/15kV contact
Voltage Output
No internal power supply output is sourced at USB connector
6.9 RS232 DCE Connection
RS232 DCE type interface on RJ45 connector provides RX, TX and GND signals, with no modem hardware
flow-control signals. This communication port is intended to be connected to external meter through an
additional cable ended with proper type connector and signal distribution. Maximum length for this cable
is 1.5m.
If RS232 cable required length is longer than 3m, it is recommended to use a shielded cable.
No hardware related configuration action is needed to enable RS232 port communication.
TERMINAL
RS232 DCE
DESCRIPTION
1
2
3
RS232 RX
Output - WAN received data is transmitted on this output
4
5
6
GND
Reference common signal